At the start of abduction of the arm, the deltoid muscle is assisted by (the)
A) biceps brachii.
B) subclavius.
C) supraspinatus.
D) infraspinatus.
E) coracobrachialis.
C) supraspinatus.
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If the rate of stimulation to a muscle is such that the relaxation phase is completely eliminated, the contraction type is ________
A) complete tetanus B) wave summation C) incomplete tetanus D) None of the listed responses is correct.
Which of the following will decrease peripheral resistance?
A) increase in vessel length B) increase in blood viscosity C) increase in vessel radius D) increase in vessel obstructions
The predominant extracellular anion is
A. protein. B. phosphate. C. bicarbonate. D. chloride. E. sodium.
The binding of a hormone and a carrier protein is ________; a very ________ fraction of such a hormone in the blood is bound to a carrier at any one point in time.
A. temporary; small B. temporary; large C. permanent; small D. permanent; large